PartsTable
Technical Data Sheet
MS9021-028ES ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, hardness_rating: 65.0 SHORE DUROMETER A NOMINAL, outside_diameter: 1.504 INCHES NOMINAL IN, center_hole_diameter: 1.358 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN, elongation_percentage: 200 MAXIMUM, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-551-8251, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MS9021-028ES
NSN: 5331-00-551-8251
FSC: 5331 — O-RING
CAGE: H2313 — ERIKS B.V. (NLD)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
hardness_rating65.0 SHORE DUROMETER A NOMINAL
outside_diameter1.504 INCHES NOMINAL IN
center_hole_diameter1.358 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN
elongation_percentage200 MAXIMUM
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
NSN5331-00-551-8251
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS9021-028ES MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
OUTSIDE DIAMETER: 1.504 INCHES NOMINAL IN
CENTER HOLE DIAMETER: 1.358 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN
ELONGATION PERCENTAGE: 200 MAXIMUM
HARDNESS RATING: 65.0 SHORE DUROMETER A NOMINAL
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
OUTSIDE DIAMETER1.504 INCHES NOMINAL IN
CENTER HOLE DIAMETER1.358 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN
ELONGATION PERCENTAGE200 MAXIMUM
HARDNESS RATING65.0 SHORE DUROMETER A NOMINAL
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
MS9021-028Interchangeable
interchangeable cross-reference
interchangeable
10411-13Interchangeable
interchangeable cross-reference
interchangeable
2-030 N506-65Interchangeable
interchangeable cross-reference
interchangeable
AS3578-028Interchangeable
Same NIIN cross-reference
interchangeable
PRP568-028-4024-65Interchangeable
Same NIIN cross-reference
interchangeable
FEN-1G-155Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS9021-028ES?
MS9021-028ES is a O-RING.
What parts can replace MS9021-028ES?
There are 7 known substitutes for MS9021-028ES: MS9021-028, 10411-13, 2-030 N506-65 and 4 more. Substitute compatibility should be verified for your specific system.
Is MS9021-028ES still available?
MS9021-028ES is currently cancelled.
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